summaryrefslogtreecommitdiff
path: root/docs/manual/rewrite/vhosts.html.en
diff options
context:
space:
mode:
Diffstat (limited to 'docs/manual/rewrite/vhosts.html.en')
-rw-r--r--docs/manual/rewrite/vhosts.html.en205
1 files changed, 205 insertions, 0 deletions
diff --git a/docs/manual/rewrite/vhosts.html.en b/docs/manual/rewrite/vhosts.html.en
new file mode 100644
index 00000000..b48f5820
--- /dev/null
+++ b/docs/manual/rewrite/vhosts.html.en
@@ -0,0 +1,205 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+ This file is generated from xml source: DO NOT EDIT
+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+ -->
+<title>Dynamic mass virtual hosts with mod_rewrite - Apache HTTP Server</title>
+<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
+<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
+<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
+<link href="../images/favicon.ico" rel="shortcut icon" /></head>
+<body id="manual-page"><div id="page-header">
+<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
+<p class="apache">Apache HTTP Server Version 2.2</p>
+<img alt="" src="../images/feather.gif" /></div>
+<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
+<div id="path">
+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.2</a> &gt; <a href="./">Rewrite</a></div><div id="page-content"><div id="preamble"><h1>Dynamic mass virtual hosts with mod_rewrite</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/rewrite/vhosts.html" title="English">&nbsp;en&nbsp;</a></p>
+</div>
+
+
+<p>This document supplements the <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code>
+<a href="../mod/mod_rewrite.html">reference documentation</a>. It describes
+how you can use <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code> to create dynamically
+configured virtual hosts.</p>
+
+<div class="warning">mod_rewrite is not the best way to configure
+virtual hosts. You should first consider the <a href="../vhosts/mass.html">alternatives</a> before resorting to
+mod_rewrite. See also the "<a href="avoid.html#vhosts">how to avoid
+mod_rewrite</a> document.</div>
+
+</div>
+<div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#per-hostname">Virtual Hosts For Arbitrary Hostnames</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#simple.rewrite">Dynamic
+ Virtual Hosts Using <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code></a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#xtra-conf">Using a Separate Virtual Host Configuration File</a></li>
+</ul><h3>See also</h3><ul class="seealso"><li><a href="../mod/mod_rewrite.html">Module documentation</a></li><li><a href="intro.html">mod_rewrite introduction</a></li><li><a href="remapping.html">Redirection and remapping</a></li><li><a href="access.html">Controlling access</a></li><li><a href="proxy.html">Proxying</a></li><li><a href="rewritemap.html">RewriteMap</a></li><li><a href="advanced.html">Advanced techniques and tricks</a></li><li><a href="avoid.html">When not to use mod_rewrite</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="per-hostname" id="per-hostname">Virtual Hosts For Arbitrary Hostnames</a></h2>
+
+
+
+ <dl>
+ <dt>Description:</dt>
+
+ <dd>
+ <p>We want to automatically create a virtual host for every hostname
+ which resolves in our domain, without having to create
+ new VirtualHost sections.</p>
+
+ <p>In this recipe, we assume that we'll be using the hostname
+ <code>www.<strong>SITE</strong>.example.com</code> for each
+ user, and serve their content out of
+ <code>/home/<strong>SITE</strong>/www</code>.</p>
+ </dd>
+
+ <dt>Solution:</dt>
+
+ <dd>
+
+<div class="example"><p><code>
+RewriteEngine on<br />
+<br />
+RewriteMap lowercase int:tolower<br />
+<br />
+RewriteCond %{lowercase:%{<strong>HTTP_HOST</strong>}} ^www\.<strong>([^.]+)</strong>\.example\.com$<br />
+RewriteRule ^(.*) /home/<strong>%1</strong>/www$1
+</code></p></div></dd>
+
+<dt>Discussion</dt>
+ <dd>
+
+ <div class="warning">You will need to take care of the DNS
+ resolution - Apache does
+ not handle name resolution. You'll need either to create CNAME
+ records for each hostname, or a DNS wildcard record. Creating DNS
+ records is beyond the scope of this document.</div>
+
+<p>The internal <code>tolower</code> RewriteMap directive is used to
+ensure that the hostnames being used are all lowercase, so that there is
+no ambiguity in the directory structure which must be created.</p>
+
+<p>Parentheses used in a <code class="directive"><a href="../mod/mod_rewrite.html#rewritecond">RewriteCond</a></code> are captured into the
+backreferences <code>%1</code>, <code>%2</code>, etc, while parentheses
+used in <code class="directive"><a href="../mod/mod_rewrite.html#rewriterule">RewriteRule</a></code> are
+captured into the backreferences <code>$1</code>, <code>$2</code>,
+etc.</p>
+
+<p>
+As with many techniques discussed in this document, mod_rewrite really
+isn't the best way to accomplish this task. You should, instead,
+consider using <code class="module"><a href="../mod/mod_vhost_alias.html">mod_vhost_alias</a></code> instead, as it will much
+more gracefully handle anything beyond serving static files, such as any
+dynamic content, and Alias resolution.
+</p>
+ </dd>
+ </dl>
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="simple.rewrite" id="simple.rewrite">Dynamic
+ Virtual Hosts Using <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code></a></h2>
+
+ <p>This extract from <code>httpd.conf</code> does the same
+ thing as <a href="#simple">the first example</a>. The first
+ half is very similar to the corresponding part above, except for
+ some changes, required for backward compatibility and to make the
+ <code>mod_rewrite</code> part work properly; the second half
+ configures <code>mod_rewrite</code> to do the actual work.</p>
+
+ <p>Because <code>mod_rewrite</code> runs before other URI translation
+ modules (e.g., <code>mod_alias</code>), <code>mod_rewrite</code> must
+ be told to explicitly ignore any URLs that would have been handled
+ by those modules. And, because these rules would otherwise bypass
+ any <code>ScriptAlias</code> directives, we must have
+ <code>mod_rewrite</code> explicitly enact those mappings.</p>
+
+<div class="example"><p><code>
+# get the server name from the Host: header<br />
+UseCanonicalName Off<br />
+<br />
+# splittable logs<br />
+LogFormat "%{Host}i %h %l %u %t \"%r\" %s %b" vcommon<br />
+CustomLog logs/access_log vcommon<br />
+<br />
+&lt;Directory /www/hosts&gt;<br />
+<span class="indent">
+ # ExecCGI is needed here because we can't force<br />
+ # CGI execution in the way that ScriptAlias does<br />
+ Options FollowSymLinks ExecCGI<br />
+</span>
+&lt;/Directory&gt;<br />
+<br />
+RewriteEngine On<br />
+<br />
+# a ServerName derived from a Host: header may be any case at all<br />
+RewriteMap lowercase int:tolower<br />
+<br />
+## deal with normal documents first:<br />
+# allow Alias /icons/ to work - repeat for other aliases<br />
+RewriteCond %{REQUEST_URI} !^/icons/<br />
+# allow CGIs to work<br />
+RewriteCond %{REQUEST_URI} !^/cgi-bin/<br />
+# do the magic<br />
+RewriteRule ^/(.*)$ /www/hosts/${lowercase:%{SERVER_NAME}}/docs/$1<br />
+<br />
+## and now deal with CGIs - we have to force a handler<br />
+RewriteCond %{REQUEST_URI} ^/cgi-bin/<br />
+RewriteRule ^/(.*)$ /www/hosts/${lowercase:%{SERVER_NAME}}/cgi-bin/$1 [H=cgi-script]<br />
+</code></p></div>
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="xtra-conf" id="xtra-conf">Using a Separate Virtual Host Configuration File</a></h2>
+
+ <p>This arrangement uses more advanced <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code>
+ features to work out the translation from virtual host to document
+ root, from a separate configuration file. This provides more
+ flexibility, but requires more complicated configuration.</p>
+
+ <p>The <code>vhost.map</code> file should look something like
+ this:</p>
+
+<div class="example"><p><code>
+customer-1.example.com /www/customers/1<br />
+customer-2.example.com /www/customers/2<br />
+# ...<br />
+customer-N.example.com /www/customers/N<br />
+</code></p></div>
+
+ <p>The <code>httpd.conf</code> should contain the following:</p>
+
+<div class="example"><p><code>
+RewriteEngine on<br />
+<br />
+RewriteMap lowercase int:tolower<br />
+<br />
+# define the map file<br />
+RewriteMap vhost txt:/www/conf/vhost.map<br />
+<br />
+# deal with aliases as above<br />
+RewriteCond %{REQUEST_URI} !^/icons/<br />
+RewriteCond %{REQUEST_URI} !^/cgi-bin/<br />
+RewriteCond ${lowercase:%{SERVER_NAME}} ^(.+)$<br />
+# this does the file-based remap<br />
+RewriteCond ${vhost:%1} ^(/.*)$<br />
+RewriteRule ^/(.*)$ %1/docs/$1<br />
+<br />
+RewriteCond %{REQUEST_URI} ^/cgi-bin/<br />
+RewriteCond ${lowercase:%{SERVER_NAME}} ^(.+)$<br />
+RewriteCond ${vhost:%1} ^(/.*)$<br />
+RewriteRule ^/(.*)$ %1/cgi-bin/$1 [H=cgi-script]
+</code></p></div>
+
+</div></div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/rewrite/vhosts.html" title="English">&nbsp;en&nbsp;</a></p>
+</div><div id="footer">
+<p class="apache">Copyright 2011 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
+<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
+</body></html> \ No newline at end of file